High PTH levels may be caused by: 1  A parathyroid gland growth (hyperplasia) or a parathyroid tumor. 2  A low level of calcium in the blood. A low blood calcium level can be caused by kidney disease, kidney failure, severe vitamin D deficiency, or an inability of the intestines to absorb calcium from food.
The equity multiplier is a financial leverage ratio that measures the amount of a firmâs assets that are financed by its shareholders by comparing total assets with total shareholderâs equity. In other words, the equity multiplier shows the percentage of assets that are financed or owed by the shareholders.
Multiplier (economics) Not to be confused with the Lagrange multiplier, a mathematical tool often used in economics. In macroeconomics, a multiplier is a factor of proportionality that measures how much an endogenous variable changes in response to a change in some exogenous variable. For example, suppose variable x changes by 1 unit, which causes another variable y to change by M units.